68777716 has 96 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 26058240.

The previous prime is 68777693. The next prime is 68777717. The reversal of 68777716 is 61777786.

It is a self number, because there is not a number n which added to its sum of digits gives 68777716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68777717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 870565 + ... + 870643.

It is an arithmetic number, because the mean of its divisors is an integer number (1612800).

Almost surely, 2^68777716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68777716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

68777716 is an abundant number, since it is smaller than the sum of its proper divisors (86051084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68777716 is a wasteful number, since it uses less digits than its factorization.

68777716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its digits is 691488, while the sum is 49.

The square root of 68777716 is about 8293.2331451612. The cubic root of 68777716 is about 409.7156783487.

The spelling of 68777716 in words is "sixty-eight million, seven hundred seventy-seven thousand, seven hundred sixteen".